Westmoreland County, Pennsylvania Population 2024

348,641

Westmoreland County, Pennsylvania's estimated 2024 population is 348,641 with a growth rate of -0.49% in the past year according to the most recent United States census data. Westmoreland County, Pennsylvania is the 11th largest county in Pennsylvania. The 2010 population was 365,029 and has seen a growth of -4.49% since that time.

Note: data after 2022 is projected based on recent change

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Year
Population
Growth
Growth Rate
2029340,101-1,708-0.5%
2028341,809-1,708-0.5%
2027343,517-1,708-0.49%
2026345,225-1,708-0.49%
2025346,933-1,708-0.49%
2024348,641-1,708-0.49%
2023350,349-1,708-0.49%
2022352,057-1,708-0.48%
2021353,765-551-0.16%
2020354,3165,3751.54%
2019348,941-1,659-0.47%
2018350,600-1,552-0.44%
2017352,152-2,611-0.74%
2016354,763-2,243-0.63%
2015357,006-1,925-0.54%
2014358,931-1,789-0.5%
2013360,720-2,105-0.58%
2012362,825-1,625-0.45%
2011364,450-579-0.16%
2010365,02900%
1990370,321-21,973-5.6%
1980392,29415,3594.07%
1970376,93524,3066.89%
1960352,62939,45012.6%
1950313,1799,7683.22%
1940303,4118,4162.85%
1930294,99521,4277.83%
1920273,56842,26418.27%
1910231,30471,12944.41%
1900160,17547,35641.98%
1890112,81934,78344.57%
188078,03619,31732.9%
187058,7194,9839.27%
186053,7362,0103.89%
185051,7269,02721.14%
184042,6994,29911.2%
183038,4007,86025.74%
182030,5404,14815.72%
181026,3923,66616.13%
180022,7266,70841.88%
179016,018-324,083-95.29%
showing: 41 rows
2024 Growth Rate
-0.49% (-1,708)
County Website
Westmoreland County
County Seat
2020 Population
354,316
Area
1028 mi²
Density
339 people/mi²
Growth Since 2020
-1.6% (-5,675)
Founded
February 26, 1773

Westmoreland County, Pennsylvania Population 2024

Population by Race

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Race
Population
Percentage (of total)
White329,73493.04%
Two or more races10,7373.03%
Black or African American8,8092.49%
Asian3,3500.95%
Other race1,5840.45%
Native American1420.04%
Native Hawaiian or Pacific Islander580.02%

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Westmoreland County, Pennsylvania Population by Race

Westmoreland County, Pennsylvania Population Pyramid 2024

Westmoreland County, Pennsylvania Median Age

47.2

Total

45.5

Male

48.6

Female

Westmoreland County, Pennsylvania Adults

There are 289,900 adults, (82,872 of whom are seniors) in Westmoreland County, Pennsylvania.

Westmoreland County, Pennsylvania Age Dependency

71.2

Age Dependency Ratio

40

Old Age Dependency Ratio

31.2

Child Dependency Ratio

Westmoreland County, Pennsylvania Sex Ratio

Female179,33350.6%
Male175,08149.4%

Westmoreland County, Pennsylvania Population by Age

Westmoreland County, Pennsylvania Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All153,2372.2677.922.1
Married76,7862.9291.88.2
Non Family56,7131.1763.436.6
Female13,7492.8360.839.2
Male5,9892.8976.823.2

2.84

Average Family Size

2.26

Average Household Size

77.9%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Westmoreland County, Pennsylvania Households and Families

Male

Female

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Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Westmoreland County, Pennsylvania Educational Attainment by Sex (over 25)

Westmoreland County, Pennsylvania Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

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The highest rate of high school graduation is among white people with a rate of 95.67%.

The highest rate of bachelors degrees is among asian people with a rate of 57.33%.

Westmoreland County, Pennsylvania Educational Attainment by Race

All

Male

Female

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$48,721

Average Earnings

$58,451

Average Male

$37,940

Average Female

Westmoreland County, Pennsylvania Earnings by Educational Attainment

Westmoreland County, Pennsylvania Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Westmoreland County, Pennsylvania Language

97.48% of Westmoreland County, Pennsylvania residents speak only English, while 2.52% speak other languages. The non-English language spoken by the largest group is Other Indo-European, which is spoken by 1.09% of the population.

Westmoreland County, Pennsylvania Language

Westmoreland County, Pennsylvania Poverty by Race

rate

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Name
Total
In Poverty
Poverty Rate
White321,26128,4268.85%
Black8,3312,36628.4%
Multiple10,5601,88417.84%
Hispanic4,6831,06522.74%
Asian3,30638111.52%
Other1,52537724.72%
Islander581729.31%
Native13375.26%

9.73%

Overall Poverty Rate

8.5%

Male Poverty Rate

10.92%

Female Poverty Rate

Poverty in Westmoreland County, Pennsylvania

The race most likely to be in poverty in Westmoreland County, Pennsylvania is Islander, with 29.31% below the poverty level.

The race least likely to be in poverty in Westmoreland County, Pennsylvania is Native, with 5.26% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.28%. Among those working part-time, it was 10.63%, and for those that did not work, the poverty rate was 16.98%.

Westmoreland County, Pennsylvania Poverty

rate

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Rate
Poverty
Less Than 9th Grade25.22%
High School11.7%
Some College7.63%
Bachelors or Greater3.84%

Westmoreland County, Pennsylvania Poverty Rate by Education

rate

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Rate
Poverty
Female Unemployed29.93%
Male Unemployed22.6%
Female Employed4.53%
Male Employed2.97%

Westmoreland County, Pennsylvania Poverty Rate by Employment Status and Sex

Westmoreland County, Pennsylvania Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

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mean

median

Income by Household Type

Westmoreland County, Pennsylvania Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

52.7%

Overall Marriage Rate

54.2%

Male Marriage Rate

51.2%

Female Marriage Rate

Westmoreland County, Pennsylvania Married by Age and Sex

male

female

Westmoreland County, Pennsylvania Marriage

The age group where males are most likely to be married is Over 65, while the female age group most likely to be married is 35-44.

Westmoreland County, Pennsylvania Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Westmoreland County, Pennsylvania Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

23,099

Number of Veterans

21,605

Male Veterans

1,494

Female Veterans

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Westmoreland County, Pennsylvania Veterans by War

count

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Westmoreland County, Pennsylvania Veterans by Age

count

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Westmoreland County, Pennsylvania Veterans by Race

Westmoreland County, Pennsylvania Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.72%

Veteran Poverty Rate

28.36%

Veteran Disability Rate

Westmoreland County, Pennsylvania Veterans by Education

LaborForceParticipation

60.6%

Labor Force Participation

57.6%

Employment Rate

5%

Unemployment Rate

Westmoreland County, Pennsylvania Employment by Age

LaborForceParticipation

Westmoreland County, Pennsylvania Employment by Race

LaborForceParticipation

Westmoreland County, Pennsylvania Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

86.04%

Born in Westmoreland County, Pennsylvania

98.34%

Native Born

1.66%

Foreign Born

0.63%

Non Citizen

1.03%

Naturalized

Place of Birth

98.34% of Westmoreland County, Pennsylvania residents were born in the United States, with 86.04% having been born in Pennsylvania. 0.63% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Westmoreland County, Pennsylvania Place of Birth

Sources